The Dallas Cowboys decided last week that former Minnesota Vikings head coach Mike Zimmer would be the team’s new defensive coordinator, replacing the Dan Quinn, who became head coach of the Washington Commanders. The deal did not get done until Monday due to a hangup in negotiations, per a source. And it fostered a few days of drama. ESPN NFL analyst Rex Ryan, the former Patriots and Jets head coach who was interviewed for the job, first announced that Zimmer was not done during a Super Bowl pre-game show on Sunday. ESPN reporter Adam Schefter reported on Monday that the Cowboys loved Ryan an…